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Re: [PATCH 2/3] x86/vmsi: add support for extended destination ID in address field
- To: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Wed, 26 Jan 2022 15:22:52 +0100
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- Cc: Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Paul Durrant <paul@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Wed, Jan 26, 2022 at 01:54:26PM +0000, David Woodhouse wrote:
> On Mon, 2022-01-24 at 14:47 +0100, Jan Beulich wrote:
> > Because of also covering the IO-APIC side, I think the CPUID aspect of
> > this really wants splitting into a 3rd patch. That way the MSI and
> > IO-APIC parts could in principle go in independently, and only the
> > CPUID one needs to remain at the tail.
>
> HPET can generate MSIs directly too.
Indeed, but the emulated one we expose to HVM guests doesn't support
FSB.
Thanks, Roger.
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